asked on

I cannot telnet to internal exchange server from another server on the same subnet

I a trying to telnet to our exchange server, which is running as part of a sbs2003 setup.

when I type: telnet hostname 25 it wont connect. I can ping the server using its hostname no problem.

I think something is blocking it. I am no expert on exchange. Perhaps it isnt configured to allow connections on port 25 on the internal network connection.

Can anyone help.

ASKER CERTIFIED SOLUTION

Network_Data_Support

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Network_Data_Support

can you telnet using the ip address may be dns problem

roy_batty

ASKER

I cant telnet using IP address either. When I telnet from the exchange server to the "localhost", I get a connection.

The SBS server is running ISA Server, but I thought that it only acted on the external facing network card

Network_Data_Support

i might b wrong but it seems you have to bind smtp to the internal nic

what happens if you telnet to the external nic

roy_batty

ASKER

It connects fine from outside. How do I bind smtp to the internal nic?

roy_batty

ASKER

I take it from the lack of replies that this isnt the correct way to proceed with this issue

roy_batty

ASKER

It was Mcaffe's "prevent mass mailer worm from sending mail" feature that was blocking it from the client end.

Took me ages to pin-point it, but now it works.

Thanks mate.

Network_Data_Support

happy days glad you got it fixed